How Gene Expression Runs on a Clock–and What It Means for Medical TreatmentsHow the body’s cycles went from folk medicine to modern science
In the wee hours of the medieval night, a monk begins to wheeze and cry in fear. His brothers call in the healer, who brings what comfort he can. Asthma is a beast of the nighttime, the healer knows. But in this hypothetical scenario, which might have played out in thousands of darkened bedrooms and dormitories down the years, all the men can do is wait for the symptoms to pass.